:root{--ink:#173f35;--ink-soft:#527068;--paper:#f7f3e9;--surface:#fffdf8;--line:#ded9cc;--gold:#f4c95d;--gold-deep:#d39b25;--mint:#d9eee4;--mint-strong:#79b99c;--danger:#ad3e3e;--danger-soft:#f8e0dc;--shadow:0 16px 40px #1f3a311a}*{box-sizing:border-box}html{background:var(--paper);color:var(--ink)}body{background:radial-gradient(circle at top right, #fff7d8 0, transparent 32rem), var(--paper);min-height:100vh;margin:0;font-family:Inter,ui-sans-serif,system-ui,-apple-system,BlinkMacSystemFont,Segoe UI,sans-serif}button,input,select{font:inherit}button{color:inherit}button,a{-webkit-tap-highlight-color:transparent}h1,h2,p{margin-top:0}h1,h2{letter-spacing:-.035em}.center-screen{text-align:center;place-content:center;justify-items:center;gap:1rem;min-height:100vh;padding:1.5rem;display:grid}.brand-mark{width:3.5rem;height:3.5rem;color:var(--gold);background:var(--ink);box-shadow:var(--shadow);border-radius:1rem;place-items:center;display:grid}.brand-mark svg{width:1.8rem;height:1.8rem}.eyebrow{color:var(--ink-soft);letter-spacing:.14em;text-transform:uppercase;margin-bottom:.4rem;font-size:.72rem;font-weight:800}.muted,.field-help{color:var(--ink-soft)}.field-help{margin:-.25rem 0 .25rem;font-size:.8rem;line-height:1.45}.onboarding-shell{grid-template-columns:minmax(0,.9fr) minmax(22rem,1fr);align-items:center;gap:5rem;width:min(68rem,100%);min-height:100vh;margin:auto;padding:5rem 2rem;display:grid}.welcome-copy h1{max-width:11ch;margin:1rem 0 1.2rem;font-size:clamp(2.6rem,5vw,5rem);line-height:.98}.welcome-copy>p:not(.eyebrow){max-width:34rem;color:var(--ink-soft);font-size:1.05rem;line-height:1.7}.welcome-copy .brand-mark{margin-bottom:2rem}.mode-note{border-left:4px solid var(--gold-deep);max-width:34rem;color:var(--ink-soft);background:#ffffff8f;margin-top:1.5rem;padding:1rem 1.1rem;line-height:1.45}.mode-note strong{color:var(--ink)}.form-card{background:var(--surface);border:1px solid var(--line);box-shadow:var(--shadow);border-radius:1.6rem;gap:1rem;padding:2rem;display:grid}.form-card h2{margin:0 0 .5rem;font-size:1.7rem}.form-card label,.entry-form label{color:var(--ink-soft);gap:.45rem;font-size:.82rem;font-weight:700;display:grid}input,select{border:1px solid var(--line);width:100%;min-height:3rem;color:var(--ink);background:#fff;border-radius:.8rem;outline:none;padding:.72rem .85rem;transition:border .15s,box-shadow .15s}input:focus,select:focus{border-color:var(--mint-strong);box-shadow:0 0 0 3px #79b99c33}.two-columns{grid-template-columns:1fr 1fr;gap:.8rem;display:grid}.form-separator{color:var(--ink-soft);text-transform:uppercase;letter-spacing:.08em;align-items:center;gap:.8rem;font-size:.76rem;font-weight:800;display:flex}.form-separator:before,.form-separator:after{content:"";background:var(--line);flex:1;height:1px}.primary-button,.secondary-button,.text-button{cursor:pointer;border:0;justify-content:center;align-items:center;gap:.45rem;font-weight:800;display:inline-flex}.primary-button{background:var(--ink);color:#fff;border-radius:.9rem;min-height:3.15rem;padding:.7rem 1rem;box-shadow:0 8px 18px #173f352e}.primary-button:hover{background:#215849}.primary-button:disabled{cursor:wait;opacity:.65}.secondary-button{border:1px solid var(--line);background:var(--surface);border-radius:.8rem;min-height:2.8rem;padding:.65rem 1rem}.secondary-button svg,.text-button svg{width:1rem;height:1rem}.text-button{color:var(--ink);background:0 0;padding:.5rem;font-size:.82rem}.icon-button{cursor:pointer;background:0 0;border:0;border-radius:.8rem;place-items:center;width:2.6rem;height:2.6rem;display:grid}.icon-button:hover{background:var(--mint)}.icon-button svg{width:1.2rem}.icon-button.small{width:2rem;height:2rem}.alert{color:var(--danger);background:var(--danger-soft);border-radius:.8rem;padding:.85rem 1rem;font-size:.85rem;line-height:1.4}.app-shell{width:min(48rem,100%);min-height:100vh;margin:0 auto;padding:1.4rem 1.15rem 7rem}.app-header{justify-content:space-between;align-items:center;margin-bottom:1.2rem;display:flex}.app-header h1{margin:0;font-size:1.85rem}.app-header .eyebrow{margin-bottom:.2rem}.avatar,.mini-avatar{background:var(--ink);color:#fff;text-transform:uppercase;border:0;border-radius:50%;flex:none;place-items:center;font-weight:800;display:grid}.avatar{cursor:pointer;width:2.9rem;height:2.9rem}.avatar.static{cursor:default}.mini-avatar{background:var(--mint);width:2.2rem;height:2.2rem;color:var(--ink)}.local-banner{color:#684c0d;text-align:center;background:#fff4ca;border-radius:.7rem;margin:-.2rem 0 1rem;padding:.65rem .85rem;font-size:.78rem}.pending-banner{background:var(--mint);color:var(--ink);text-align:center;border-radius:.7rem;margin:-.2rem 0 1rem;padding:.65rem .85rem;font-size:.78rem;font-weight:800}.tank-card{background:var(--ink);color:#fff;min-height:14rem;box-shadow:var(--shadow);border-radius:1.7rem;justify-content:space-between;align-items:center;gap:1rem;padding:2rem;display:flex;position:relative;overflow:hidden}.tank-card:after{content:"";background:#f4c95d1a;border-radius:50%;width:14rem;height:14rem;position:absolute;top:-7rem;right:-5rem}.tank-copy{z-index:1;display:grid;position:relative}.tank-copy p{color:#bad2c8;margin-bottom:.5rem;font-size:.86rem}.tank-copy h2{margin:0;font-size:clamp(3rem,11vw,5.4rem);line-height:1}.tank-copy strong{color:var(--gold);margin-top:.6rem;font-size:1.05rem}.tank-copy span{color:#bad2c8;margin-top:1.35rem;font-size:.76rem}.tank-visual{z-index:1;border:2px solid #ffffff8c;border-radius:1.2rem 1.2rem .8rem .8rem;place-items:center;width:5.2rem;height:8rem;display:grid;position:relative;overflow:hidden}.tank-fill{background:var(--gold);transition:height .5s;position:absolute;inset:auto 0 0}.tank-visual svg,.tank-visual b{z-index:1;color:var(--ink);position:relative}.tank-visual svg{width:1.4rem}.quick-actions{grid-template-columns:1fr 1fr;gap:.9rem;margin:1rem 0 1.8rem;display:grid}.action{text-align:left;cursor:pointer;border:0;border-radius:1.25rem;grid-template-rows:auto auto;grid-template-columns:auto 1fr;align-items:center;column-gap:.8rem;min-height:7rem;padding:1rem;display:grid}.action>span{border-radius:.85rem;grid-row:1/3;place-items:center;width:2.8rem;height:2.8rem;display:grid}.action svg{width:1.35rem}.action b{align-self:end;font-size:1rem}.action small{color:var(--ink-soft);align-self:start}.ride-action{background:var(--mint)}.ride-action>span{background:var(--ink);color:#fff}.fuel-action{background:#fae9ac}.fuel-action>span{background:var(--gold)}.section-block{border:1px solid var(--line);background:#fffdf8d1;border-radius:1.35rem;margin-top:1.25rem;padding:1.35rem}.section-heading{justify-content:space-between;align-items:center;gap:1rem;margin-bottom:1rem;display:flex}.section-heading h2{margin:0;font-size:1.3rem}.section-heading .eyebrow{margin-bottom:.25rem}.empty-state{align-items:center;gap:.9rem;padding:.8rem 0;display:flex}.empty-state p{color:var(--ink-soft);margin:.15rem 0 0;font-size:.84rem}.success-icon{background:var(--mint);border-radius:50%;place-items:center;width:2.4rem;height:2.4rem;display:grid}.success-icon svg{width:1.2rem}.settlement-list,.owner-list,.activity-list,.people-list{display:grid}.settlement-row{border-top:1px solid var(--line);grid-template-columns:1fr auto;align-items:center;gap:.4rem 1rem;padding:.9rem 0;display:grid}.settlement-row:first-child{border-top:0}.settlement-row span{color:var(--ink-soft)}.settlement-row>b{font-size:1.05rem}.settlement-row button{background:var(--mint);cursor:pointer;border:0;border-radius:2rem;grid-column:1/-1;justify-self:start;padding:.4rem .75rem;font-size:.75rem;font-weight:800}.owner-row{border-top:1px solid var(--line);grid-template-columns:auto 1fr auto;align-items:center;gap:.75rem;padding:.75rem 0;display:grid}.owner-row:first-child{border-top:0}.owner-row div{gap:.1rem;display:grid}.owner-row small{color:var(--ink-soft)}.activity-page,.people-page{min-height:30rem}.activity-row{border-top:1px solid var(--line);grid-template-columns:auto minmax(0,1fr) auto auto;align-items:center;gap:.75rem;padding:1rem 0;display:grid;position:relative}.activity-row:first-child{border-top:0}.activity-icon{background:var(--mint);border-radius:.75rem;place-items:center;width:2.4rem;height:2.4rem;display:grid}.activity-icon svg{width:1.15rem}.activity-main{gap:.18rem;min-width:0;display:grid}.activity-main small{color:var(--ink-soft);text-overflow:ellipsis;white-space:nowrap;overflow:hidden}.revision-link{color:var(--gold-deep);cursor:pointer;background:0 0;border:0;justify-self:start;padding:0;font-size:.7rem;font-weight:800}.pending-label{color:#8a6207;justify-self:start;font-size:.7rem;font-style:normal;font-weight:800}.activity-row>b{white-space:nowrap}.revision-panel{border-left:3px solid var(--gold);background:#fff7d8;gap:.45rem;margin:-.35rem 0 .8rem 3.15rem;padding:.75rem;font-size:.78rem;display:grid}.revision-panel>div{color:var(--ink-soft);justify-content:space-between;gap:1rem;display:flex}.revision-panel time{white-space:nowrap}.person-row{border-top:1px solid var(--line);grid-template-columns:auto 1fr auto;align-items:center;gap:.8rem;padding:1rem 0;display:grid}.person-row:first-child{border-top:0}.person-row>div:nth-child(2){gap:.2rem;display:grid}.person-row small{color:var(--ink-soft)}.balance{color:var(--ink-soft);align-items:center;gap:.25rem;font-size:.78rem;font-weight:800;display:flex}.balance svg{width:.95rem}.balance.positive{color:#18724e}.balance.negative{color:var(--danger)}.invite-card{background:var(--mint);border-radius:1rem;justify-content:space-between;align-items:center;gap:1rem;margin-top:1rem;padding:1.1rem;display:flex}.invite-card p{color:var(--ink-soft);margin:.2rem 0 0;font-size:.8rem}.bottom-nav{z-index:8;width:min(48rem,100%);padding:.6rem max(1rem, env(safe-area-inset-right)) max(.6rem, env(safe-area-inset-bottom)) max(1rem, env(safe-area-inset-left));border-top:1px solid var(--line);-webkit-backdrop-filter:blur(14px);backdrop-filter:blur(14px);background:#f7f3e9f0;grid-template-columns:repeat(3,1fr);margin:auto;display:grid;position:fixed;inset:auto 0 0}.bottom-nav button{color:var(--ink-soft);cursor:pointer;background:0 0;border:0;border-radius:.75rem;justify-items:center;gap:.15rem;padding:.55rem;font-size:.69rem;font-weight:800;display:grid}.bottom-nav button.active{background:var(--mint);color:var(--ink)}.bottom-nav svg{width:1.2rem}.modal-backdrop{z-index:20;-webkit-backdrop-filter:blur(4px);backdrop-filter:blur(4px);background:#0f272185;justify-content:center;align-items:flex-end;padding:1rem;display:flex;position:fixed;inset:0}.modal{background:var(--surface);border-radius:1.5rem 1.5rem 1rem 1rem;width:min(32rem,100%);max-height:calc(100vh - 2rem);padding:1.3rem;overflow-y:auto;box-shadow:0 25px 80px #00000038}.modal-header{justify-content:space-between;align-items:center;margin-bottom:1rem;display:flex}.modal-header h2{margin:0;font-size:1.45rem}.entry-form{gap:1rem;display:grid}.identity-line{background:var(--mint);border-radius:.8rem;align-items:center;gap:.55rem;padding:.8rem;font-weight:800;display:flex}.identity-line svg{width:1.1rem}@media (min-width:640px){.modal-backdrop{align-items:center}.app-shell{padding-top:2rem}}@media (max-width:760px){.onboarding-shell{grid-template-columns:1fr;gap:2rem;padding:2rem 1.1rem 3rem}.welcome-copy h1{font-size:3rem}.welcome-copy .brand-mark{margin-bottom:1.4rem}}@media (max-width:430px){.two-columns{grid-template-columns:1fr}.form-card{padding:1.25rem}.tank-card{min-height:12rem;padding:1.4rem}.tank-copy h2{font-size:3.4rem}.tank-visual{width:4.2rem;height:6.5rem}.action{grid-template-rows:auto auto auto;grid-template-columns:1fr;gap:.25rem;min-height:6.4rem}.action>span{grid-row:auto;width:2.2rem;height:2.2rem}.activity-row{grid-template-columns:auto minmax(0,1fr) auto}.activity-row .icon-button{grid-column:3}.activity-row>b{grid-area:1/3}.activity-row .icon-button{grid-row:2}.person-row{grid-template-columns:auto 1fr}.person-row .balance{grid-column:2}.invite-card{flex-direction:column;align-items:stretch}}@media (prefers-reduced-motion:reduce){*,:before,:after{scroll-behavior:auto!important;transition-duration:.01ms!important}}